Detailed case reports of uncommon diseases that present with common symptoms Covers a wide range of diseases that affect multi-organ systems Includes historical context, reviews early and later literature, and makes recommendations for clinical care This book presents detailed case reports of unusual diseases with common symptoms, many of which have emerged in the past decade as a result of nature, advances in medical treatment, and increasing recognition of specific underpinnings of human biology and immunology. These rare diseases must now be considered when the mundane diagnoses do not exactly fit the patient’s clinical history or treatment fails. Some of these diseases include eosinophilic esophagitis, blastocystis hominis infection, and promises allergic fungal sinusitis. Chapters provide in-depth clinical examples of a wide range of diseases affecting multiple organ systems.